Remove RenderWidgetHostView*::DidUpdateBackingStore.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 494142cc0704f4f6033e5649c161afcf1761bb73..504712e27285eafe66346a32c1439c575564e5d0 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -1609,23 +1609,6 @@ void RenderWidgetHostImpl::DidUpdateBackingStore(
   if (is_hidden_)
     return;
 
-  // Now paint the view. Watch out: it might be destroyed already.
-  if (view_ && !is_accelerated_compositing_active_) {
-
-    std::vector<ui::LatencyInfo> latency_info;
-    for (size_t i = 0; i < params.latency_info.size(); i++) {
-      ui::LatencyInfo info = params.latency_info[i];
-      AddLatencyInfoComponentIds(&info);
-      latency_info.push_back(info);
-    }
-
-    view_being_painted_ = true;
-    view_->DidUpdateBackingStore(params.scroll_rect, params.scroll_delta,
-                                 params.copy_rects, latency_info);
-    view_->DidReceiveRendererFrame();
-    view_being_painted_ = false;
-  }
-
   // If we got a resize ack, then perhaps we have another resize to send?
   bool is_resize_ack =
       ViewHostMsg_UpdateRect_Flags::is_resize_ack(params.flags);
@@ -1636,16 +1619,6 @@ void RenderWidgetHostImpl::DidUpdateBackingStore(
   TimeTicks now = TimeTicks::Now();
   TimeDelta delta = now - update_start;
   UMA_HISTOGRAM_TIMES("MPArch.RWH_DidUpdateBackingStore", delta);
-
-  // Measures the time from receiving the MsgUpdateRect IPC to completing the
-  // DidUpdateBackingStore() method.  On platforms which have asynchronous
-  // painting, such as Linux, this is the sum of MPArch.RWH_OnMsgUpdateRect,
-  // MPArch.RWH_DidUpdateBackingStore, and the time spent asynchronously
-  // waiting for the paint to complete.
-  //
-  // On other platforms, this will be equivalent to MPArch.RWH_OnMsgUpdateRect.
-  delta = now - paint_start;
-  UMA_HISTOGRAM_TIMES("MPArch.RWH_TotalPaintTime", delta);
 }
 
 void RenderWidgetHostImpl::OnQueueSyntheticGesture(